Question

If a newspaper boy earns 20 percent on selling 290 newspaper for Rs 522 at what price had he bought each newspaper

Answer 1

He purchased the newspaper at 1.5 rupees.

290 for 522
1 for 522/290
He got profit of 20 %
So 120 % is 522/290
1% is (522/290)/120
100% is (522/290)/120 x100
=1.5